Two-port amplifier model practice problems
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Read the Amplifier class notes.
For the amplifier circuit shown, RS = 27 kΩ, and RL = 390 Ω.
For amp 1: Ri1 = 27 kΩ, A1= 5, Ro1 = 8.2 kΩ.
For amp 2: Ri2 = 3.9 kΩ, A2= 25, Ro2 = 1 kΩ.
For amp 3: Ri3 = 3.9 kΩ, A3= 15, Ro3 = 560 Ω.

If the amplitude of the input signal is vi = 0.2 V, find the amplitude of the amplified output singnal, vo.